gentoo-overlay/sys-apps/systemd-readahead/files/systemd-readahead-216-glibc-2.27.patch

--- a/src/shared/missing.h.orig	2018-10-21 16:47:25.858241043 +0200
+++ b/src/shared/missing.h	2018-10-21 16:47:36.986335212 +0200
@@ -204,12 +204,6 @@
 }
 #endif
 
-#ifndef HAVE_MEMFD_CREATE
-static inline int memfd_create(const char *name, uint64_t flags) {
-        return syscall(__NR_memfd_create, name, flags);
-}
-#endif
-
 #ifndef BTRFS_IOCTL_MAGIC
 #define BTRFS_IOCTL_MAGIC 0x94
 #endif